Virtual reality used to be a big thing, until it ran face-first into the wall of poor interface design. Bulky helmets and thick gloves were not the future of computing then, and probably won’t be making a comeback. What might work, though, is a set of screens small enough to fit in a visor, with all the horsepower of a modern monitor. Check out this article about such a virtual reality system using Half-Life 2 for a demo. Ars Technica has the story.